i installed Windows 8 in my HP 8560w ; i can't login to Windows . after i download the last driver for quadro 2000m but when i installed new update for Windows i had the same problem with black screen , to resolve that i remove battery few second and it logon normaly . is this problem of bios or of Windows ?
can you use a spare monitor attached via HDmi(if you have one ) and see what happens? it is definitely video card issue if the resolution is set too high you won't get anywhere but black screen